Pneumatic vehicle-wheel.



J. H. FAWKES. .PNEUMATIC VEHICLE WHEEL. APPLICATION men MAH. 5, 19:5.

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WIT/VESSES:

'^ J. H. HUA/KLS.

PNEUMATIC VEHICLE WHEEL.' APPUCATION FILED'MAR.5,1915.

E sfliw@ nvm/rol? Jac ab H. Fawkes Amen/Ev JPNEUMTIC VEHICLE-WHEEL.

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Specification of Letters Patent.

Patented Alpi, 25, lllllln applicaties alec March 5, isis. sensu no. lacie.

To all whom t may concern:

'Be it known that JACOB H. FAwKns, a citizen of the United States, and a resident of Portland, county of Multnomah, and State of Oregon, have invented a new and useful improvement in Pneumatic Vehiclel/V heels, of which the following is a specilication.

My invention relates to vehicle wheels of the pneumatic type and has for its object to provide a pneumatic tired wheel of simple and strong construction yembodying the following special features: The wheel frame shall be of a builtaip type, that is to say, made up of a plurality of parts readily and rigidlyV assembled on the hub ofthe wheel, and inclosed by two wheel sides. The tire of the wheel shall be demountably seated in the rim of the wheel, and this construction shall be of such character as to permit the tirefto be readily collapsed and demounted by merely dellating the inner pneumatic or inflation tube. IThe tire shall have a certain maximum resiliency regardless of the width of the tire. The vwheel shall be adapted to keep out dust and dirt, and the hub of the wheel shall be adapted to be used on the spindle common to the usual running gear of vehicles.

s@ther incidental features of. my invention are brought out fully in the description of my tire.

The construction of my tire whereby l attain the above specilled features is best understood by a description of the accompanying" drawings, constituting a part ofV this specication.

ln the drawings, Figure l shows in its up perlialf a diainetric section ofmy improved vehicle wheel and in its lower half shows an end'elevation of the saine, and Fig. Eris a fragmental front elevation with parts broken away so as to disclose details of construction.

l will describe the parts. of my improved wheel in the order in which the same are assembled when gether. l

The hub a is made with an internal taper so that it will A dle b of the usual form found in vehicle axles. The hub a, is made with peripheral grooves c, and al, for ball bearings. @ver putting one of my wheels tothe peripheral grooves c, are located scg'- mental, annular housings c, forming with lit the common tapered spin- A said grooves ball races for the ball bearings f. Between the housings e, e, and bearing on the latter is mounted a stub-spoke element g, comprising' an eye and plurality of stub-spokes g as seenbylcomparing Figs. l and 2. Exterior of said stub-spoke element are mounted wheel sides Il, it', the inner portions of which are adapted to bear on the housings c, 6,. as shown in Fig.` 1. Said wheel-sides b, are blanked and formed so as to form the abutting radial spoke sections LZ and ha respectively, and when the wheel is assembled, the stub spokes g will project into and reinforce ,the spokes thus formed by the abutting sections. The outer portionsof the wheel sides are made with circumferential flaring flanges z', c" adapted to form a seat for the tire or outer casing Z. Such circumferential Han'ges'are provided with stiffening elements consisting of pressed-out and pressed-in protruding portions j, and. j staggered relatively to each other; and said circumferential flanges of the wheel sides are further made with annular tire locking cavities 7c and with other concentric undulating surfaces le. The tire or outer casing Z is made with concentric protrusions l', Z2., of which the protrusions Z are located and adapted to bear in the annular cavities lc of the circumferential flanges of the wheel sides and the protru sions Z2 are located and adapted to bear on thi; periphery of said flanges of the "wheel s1 es.

At the'base of the Hanges of the wheel sides is provided a circumferential ring m, which is secured in place by bolts m, extending through the wheel sides. A stiffening ring n is alliaed on the hub and bears on the inner portion of the inner wheel side fr', and a companion stiffening ring 0 is allixed on the outer wheel side h, adjacent the hub. The'stiflening rings n and 0 are secured in place by a through-bolt p, as shown in lgt. l. The outer stidening ring o is made with an extension o', which incloses a ball-bearf ing element ga located with respect tothe peripheral groove d, of the hub a. The an nular ring r is interposed between the base of the outer wheel side it and the housing 0f the ball bearing' element Qc @n the ei;- tension o of the still'ening ring o is threaded cap e, the latter being provided with a nut head ai The tire or outer casing l is made with inner tlap Yportions t, of a flexible chau titl acter and arranged to lie in the concentric .undulating surfaces of the circumferential flanges z', i of the wheel sides 71 It', and in so doing contribute toward theholding of the tire firmly in place. In the tire is located the usual inflation tube u, inflated through the valve u. When the tube u is inflated the extended flexible portions t of the tire sides will beorc'ed into undulating surfaces of the flanges d, e" and in so doing contribute to the holding of the `tire firmly on the wheel rim. The cap s is made with a nut head .s`

for convenience.

w represents part of a velncle axle of conventional form to which the spindle Z of thesame offers as great a degree of resiliency as would a cushion of circular cross-section, but by reason of the more-or-less oval construction of the tire portion of my wheel, a narrow tirc can be used without sacrificing the desired degree of resiliency. It is also to be noted that so long as the inflation tube u is inflated, the tire or outer casing portions Z and also Z2 will be rigidly held in interlocking relation with the circumferential flanges of the wheel sides, in so doing holding the tire firmly in place. But the demounting of the tire is, nevertheless, readily accomplished by merely deflating the inner tube u., then pressing or collapsing the tire inward, whereupon it may be readily removed and replaced. The peripheral protuberances L on the exterior' of the flanges of the rim also serve as guards, preventing the tire being injured by striking against the curb of the street or other surfaces.

I claim:

The combination in a wheel of a flanged rim each ofthe sides of which .is provided with an annularly extending cavity near the periphery, and each of said flanges being further made with undulations inward- "of said cavity, an outer casing or tire formed like an inverted U having beads located at its sides adapted for being seated in said annularly extending cavities of the flanges l of the wheel rim, also having other concentric beads located for being seated on the edges of said flanges for the purpose described, the sides of the casing being further provided with flexible extended portions adap'ted for bearing against the interior of the inwardly located undulated portions of' said flanges, and a pneumatic tube located in said wheel rim and tire.

` JACOB H. EAWKES.

A Witnesses:

WM. C. SCHMITT, D. E. CRABB. 

